1
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Toftdal MS, Christensen NP, Kadumudi FB, Dolatshahi-Pirouz A, Grunnet LG, Chen M. Mechanically reinforced hydrogel vehicle delivering angiogenic factor for beta cell therapy. J Colloid Interface Sci 2024; 667:54-63. [PMID: 38615623 DOI: 10.1016/j.jcis.2024.04.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/18/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
Type 1 diabetes mellitus (T1DM) is a chronic disease affecting millions worldwide. Insulin therapy is currently the golden standard for treating T1DM; however, it does not restore the normal glycaemic balance entirely, which increases the risk of secondary complications. Beta-cell therapy may be a possible way of curing T1DM and has already shown promising results in the clinic. However, low retention rates, poor cell survival, and limited therapeutic potential are ongoing challenges, thus increasing the need for better cell encapsulation devices. This study aimed to develop a mechanically reinforced vascular endothelial growth factor (VEGF)-delivering encapsulation device suitable for beta cell encapsulation and transplantation. Poly(l-lactide-co-ε-caprolactone) (PLCL)/gelatin methacryloyl (GelMA)/alginate coaxial nanofibres were produced using electrospinning and embedded in an alginate hydrogel. The encapsulation device was physically and biologically characterised and was found to be suitable for INS-1E beta cell encapsulation, vascularization, and transplantation in terms of its biocompatibility, porosity, swelling ratio and mechanical properties. Lastly, VEGF was incorporated into the hydrogel and the release kinetics and functional studies revealed a sustained release of bioactive VEGF for at least 14 days, making the modified alginate system a promising candidate for improving the beta cell survival after transplantation.
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Affiliation(s)
- Mette Steen Toftdal
- Department of Biological and Chemical Engineering, Aarhus University, 8000 Aarhus C, Denmark; Department of Cell Formulation and Delivery, Novo Nordisk A/S, 2760 Måløv, Denmark
| | | | - Firoz Babu Kadumudi
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | | | - Lars Groth Grunnet
- Department of Cell Formulation and Delivery, Novo Nordisk A/S, 2760 Måløv, Denmark
| | - Menglin Chen
- Department of Biological and Chemical Engineering, Aarhus University, 8000 Aarhus C, Denmark.
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2
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Zhao Y, Zhong W. Recent Progress in Advanced Polyester Elastomers for Tissue Engineering and Bioelectronics. Molecules 2023; 28:8025. [PMID: 38138515 PMCID: PMC10745526 DOI: 10.3390/molecules28248025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Polyester elastomers are highly flexible and elastic materials that have demonstrated considerable potential in various biomedical applications including cardiac, vascular, neural, and bone tissue engineering and bioelectronics. Polyesters are desirable candidates for future commercial implants due to their biocompatibility, biodegradability, tunable mechanical properties, and facile synthesis and fabrication methods. The incorporation of bioactive components further improves the therapeutic effects of polyester elastomers in biomedical applications. In this review, novel structural modification methods that contribute to outstanding mechanical behaviors of polyester elastomers are discussed. Recent advances in the application of polyester elastomers in tissue engineering and bioelectronics are outlined and analyzed. A prospective of the future research and development on polyester elastomers is also provided.
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Affiliation(s)
- Yawei Zhao
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;
| | - Wen Zhong
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;
- Department of Medical Microbiology, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
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3
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Ramot Y, Levin-Harrus T, Ezratty A, Steiner M, Ezov N, Domb AJ, Abdel-Haq M, Shohat S, Aperman L, Adler L, Dolkart O, Nyska A. Assessment of Bioprotect's Biodegradable Balloon System as a Rectal Spacer in Radiotherapy: An Animal Study on Tissue Response and Biocompatibility. Pharmaceutics 2023; 15:2744. [PMID: 38140085 PMCID: PMC10747072 DOI: 10.3390/pharmaceutics15122744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/23/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Prostate cancer is a significant health concern for men, emphasizing the need for effective treatment strategies. Dose-escalated external beam radiotherapy shows promise in improving outcomes but presents challenges due to radiation effects on nearby structures, such as the rectum. Innovative techniques, including rectal spacers, have emerged to mitigate these effects. This study comprehensively assessed tissue responses following the implantation of the Bioprotect biodegradable fillable balloon as a rectal spacer in a rat model. Evaluation occurred at multiple time points (4, 26, and 52 weeks) post-implantation. Results revealed localized tissue responses consistent with the expected reaction to biodegradable materials, characterized by mild to moderate fibrotic reactions and encapsulation, underscoring the safety and biocompatibility of the balloon. Importantly, no other adverse events occurred, and the animals remained healthy throughout the study. These findings support its potential clinical utility in radiotherapy treatments to enhance patient outcomes and minimize long-term implant-related complications, serving as a benchmark for future similar studies and offering valuable insights for researchers in the field. In conclusion, the findings from this study highlight the safety, biocompatibility, and potential clinical applicability of the Bioprotect biodegradable fillable balloon as a promising rectal spacer in mitigating radiation-induced complications during prostate cancer radiotherapy.
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Affiliation(s)
- Yuval Ramot
- Department of Dermatology, Hadassah Medical Center, Jerusalem 9112001, Israel;
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Tal Levin-Harrus
- Envigo CRS Israel Limited, Ness Ziona 7414001, Israel; (T.L.-H.); (A.E.); (M.S.); (N.E.)
| | - Adva Ezratty
- Envigo CRS Israel Limited, Ness Ziona 7414001, Israel; (T.L.-H.); (A.E.); (M.S.); (N.E.)
| | - Michal Steiner
- Envigo CRS Israel Limited, Ness Ziona 7414001, Israel; (T.L.-H.); (A.E.); (M.S.); (N.E.)
| | - Nati Ezov
- Envigo CRS Israel Limited, Ness Ziona 7414001, Israel; (T.L.-H.); (A.E.); (M.S.); (N.E.)
| | - Abraham J. Domb
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (A.J.D.); (M.A.-H.)
| | - Muhammad Abdel-Haq
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (A.J.D.); (M.A.-H.)
| | - Shaul Shohat
- BioProtect, Tzur Yigal 4486200, Israel; (S.S.); (L.A.); (L.A.)
| | - Liron Aperman
- BioProtect, Tzur Yigal 4486200, Israel; (S.S.); (L.A.); (L.A.)
| | - Lee Adler
- BioProtect, Tzur Yigal 4486200, Israel; (S.S.); (L.A.); (L.A.)
| | - Oleg Dolkart
- Assuta Ashdod University Hospital, Ben-Gurion University of the Negev, Beer Sheba 8410501, Israel;
| | - Abraham Nyska
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6200515, Israel
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4
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Okhovatian S, Shakeri A, Huyer LD, Radisic M. Elastomeric Polyesters in Cardiovascular Tissue Engineering and Organs-on-a-Chip. Biomacromolecules 2023; 24:4511-4531. [PMID: 37639715 PMCID: PMC10915885 DOI: 10.1021/acs.biomac.3c00387] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Cardiovascular tissue constructs provide unique design requirements due to their functional responses to substrate mechanical properties and cyclic stretching behavior of cardiac tissue that requires the use of durable elastic materials. Given the diversity of polyester synthesis approaches, an opportunity exists to develop a new class of biocompatible, elastic, and immunomodulatory cardiovascular polymers. Furthermore, elastomeric polyester materials have the capability to provide tailored biomechanical synergy with native tissue and hence reduce inflammatory response in vivo and better support tissue maturation in vitro. In this review, we highlight underlying chemistry and design strategies of polyester elastomers optimized for cardiac tissue scaffolds. The major advantages of these materials such as their tunable elasticity, desirable biodegradation, and potential for incorporation of bioactive compounds are further expanded. Unique fabrication methods using polyester materials such as micromolding, 3D stamping, electrospinning, laser ablation, and 3D printing are discussed. Moreover, applications of these biomaterials in cardiovascular organ-on-a-chip devices and patches are analyzed. Finally, we outline unaddressed challenges in the field that need further study to enable the impactful translation of soft polyesters to clinical applications.
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Affiliation(s)
- Sargol Okhovatian
- Institute of Biomaterials Engineering; University of Toronto; Toronto; Ontario, M5S 3G9; Canada
- Toronto General Research Institute, Toronto; Ontario, M5G 2C4; Canada
| | - Amid Shakeri
- Institute of Biomaterials Engineering; University of Toronto; Toronto; Ontario, M5S 3G9; Canada
- Toronto General Research Institute, Toronto; Ontario, M5G 2C4; Canada
| | - Locke Davenport Huyer
- Department of Applied Oral Sciences, Faculty of Dentistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
- School of Biomedical Engineering, Faculties of Medicine and Engineering, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
- Department of Microbiology & Immunology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Milica Radisic
- Institute of Biomaterials Engineering; University of Toronto; Toronto; Ontario, M5S 3G9; Canada
- Toronto General Research Institute, Toronto; Ontario, M5G 2C4; Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto; Ontario, M5S 3E5; Canada
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5
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Liu C, Jiang S, Xu W, Chen X, He R, Deng K, Su H, Yin X, Su S, Liang T, Zhu L, Hou G, Zhang Y, Shi Y, Lv W, Liu L, Guo Z, Xu Y, Xu T, Wang K. Poly-l-lactide-co-ε-caprolactone (PLCL) and poly-l-lactic acid (PLLA)/gelatin electrospun subacromial spacer improves extracellular matrix (ECM) deposition for the potential treatment of irreparable rotator cuff tears. Int J Biol Macromol 2023:125522. [PMID: 37353124 DOI: 10.1016/j.ijbiomac.2023.125522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/12/2023] [Accepted: 06/20/2023] [Indexed: 06/25/2023]
Abstract
Biodegradable subacromial spacer implantation has become practicable for the treatment of irreparable rotator cuff tears (IRCT). However, the relative high degradation rate and inferior tissue regeneration properties of current subacromial spacer may lead to failure regards to long-term survival. It is reported that satisfactory clinical results lie in the surrounding extracellular matrix (ECM) deposition after implantation. This study aims to develop a biological subacromial spacer that would enhance tissue regeneration properties and results in better ECM deposition. Physicochemical properties were characterized on both poly-l-lactide-co-ε-caprolactone (PLCL) dip-coating spacer (monolayer spacer, MS) and PLCL dip-coating + Poly-l-Lactic Acid (PLLA)/Gelatin electrospun spacer (Bilayer Spacer, BS). Cytocompatibility, angiogenesis, and collagen inducibility were evaluated with tendon fibroblasts and endothelial cells. Ultrasonography and histomorphology were used to analyze biodegradability and surrounding ECM deposition after the implantation in vivo. BS was successfully fabricated with the dip-coating and electrospinning technique, based on the human humeral head data. In vitro studies demonstrated that BS showed a greater cytocompatibility, and increased secretion of ECM proteins comparing to MS. In vivo studies indicated that BS promoted ECM deposition and angiogenesis in the surrounding tissue. Our research highlights that BS exhibits better ECM deposition and reveals a potential candidate for the treatment of IRCT in future.
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Affiliation(s)
- Chang Liu
- Department of Joint and Trauma Surgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China; Department of Orthopaedic Surgery, The Lingnan Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Shihai Jiang
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig 04103, Germany
| | - Wenbin Xu
- Department of Orthopaedic Surgery, The Lingnan Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Xi Chen
- Department of Joint and Trauma Surgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Ronghan He
- Department of Joint and Trauma Surgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Kunxue Deng
- Medprin Regenerative Medical Technologies Co., Ltd, Guangzhou 510630, China
| | - Hengxian Su
- Zhujiang Hospital of Southern Medical University, Guangzhou 510282, China
| | - XiaoPeng Yin
- Department of Joint and Trauma Surgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Shouwen Su
- Department of Joint and Trauma Surgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Tangzhao Liang
- Department of Joint and Trauma Surgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Lei Zhu
- Department of Plastic and Aesthetic Surgery, Third Affiliated Hospital of Sun Yat-sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou 510630, China
| | - Gang Hou
- Department of Orthopaedic Surgery, The Lingnan Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Yuanyuan Zhang
- Obstetrics and Gynaecology, Maternal and Child Health Care Hospital of Jiaozuo, Jiaozuo 454000, China
| | - Yi Shi
- Department of Orthopedics, First Affiliated Hospital of Anhui Medical University, 230022, China
| | - Wenhao Lv
- Department of Joint Surgery, Jiaozuo Coal Industry (Group) Co. Ltd. Central Hospital, Jiaozuo 454000, China
| | - Libiao Liu
- Medprin Regenerative Medical Technologies Co., Ltd, Guangzhou 510630, China
| | - Zeyue Guo
- Medprin Regenerative Medical Technologies Co., Ltd, Guangzhou 510630, China
| | - Yichun Xu
- Department of Orthopaedic Surgery, The Lingnan Hospital of Sun Yat-sen University, Guangzhou 510630, China.
| | - Tao Xu
- Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China; Center for Bio-intelligent Manufacturing and Living Matter Bioprinting, Research Institute of Tsinghua University in Shenzhen, Tsinghua University, Shenzhen 518057, China; East China Institute of Digital Medical Engineering, Shangrao 334000, China.
| | - Kun Wang
- Department of Joint and Trauma Surgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.
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6
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Snyder Y, Jana S. Elastomeric Trilayer Substrates with Native-like Mechanical Properties for Heart Valve Leaflet Tissue Engineering. ACS Biomater Sci Eng 2023; 9:1570-1584. [PMID: 36802499 DOI: 10.1021/acsbiomaterials.2c01430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Heart valve leaflets have a complex trilayered structure with layer-specific orientations, anisotropic tensile properties, and elastomeric characteristics that are difficult to mimic collectively. Previously, trilayer leaflet substrates intended for heart valve tissue engineering were developed with nonelastomeric biomaterials that cannot deliver native-like mechanical properties. In this study, by electrospinning polycaprolactone (PCL) polymer and poly(l-lactide-co-ε-caprolactone) (PLCL) copolymer, we created elastomeric trilayer PCL/PLCL leaflet substrates with native-like tensile, flexural, and anisotropic properties and compared them with trilayer PCL leaflet substrates (as control) to find their effectiveness in heart valve leaflet tissue engineering. These substrates were seeded with porcine valvular interstitial cells (PVICs) and cultured for 1 month in static conditions to produce cell-cultured constructs. The PCL/PLCL substrates had lower crystallinity and hydrophobicity but higher anisotropy and flexibility than PCL leaflet substrates. These attributes contributed to more significant cell proliferation, infiltration, extracellular matrix production, and superior gene expression in the PCL/PLCL cell-cultured constructs than in the PCL cell-cultured constructs. Further, the PCL/PLCL constructs showed better resistance to calcification than PCL constructs. Trilayer PCL/PLCL leaflet substrates with native-like mechanical and flexural properties could significantly improve heart valve tissue engineering.
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Affiliation(s)
- Yuriy Snyder
- Department of Bioengineering, University of Missouri, Columbia, Missouri 65211, United States
| | - Soumen Jana
- Department of Bioengineering, University of Missouri, Columbia, Missouri 65211, United States
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7
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Tan Y, Chen Y, Lu T, Witman N, Yan B, Gong Y, Ai X, Yang L, Liu M, Luo R, Wang H, Ministrini S, Dong W, Wang W, Fu W. Engineering a conduction-consistent cardiac patch with rGO/PLCL electrospun nanofibrous membranes and human iPSC-derived cardiomyocytes. Front Bioeng Biotechnol 2023; 11:1094397. [PMID: 36845196 PMCID: PMC9944832 DOI: 10.3389/fbioe.2023.1094397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 01/25/2023] [Indexed: 02/10/2023] Open
Abstract
The healthy human heart has special directional arrangement of cardiomyocytes and a unique electrical conduction system, which is critical for the maintenance of effective contractions. The precise arrangement of cardiomyocytes (CMs) along with conduction consistency between CMs is essential for enhancing the physiological accuracy of in vitro cardiac model systems. Here, we prepared aligned electrospun rGO/PLCL membranes using electrospinning technology to mimic the natural heart structure. The physical, chemical and biocompatible properties of the membranes were rigorously tested. We next assembled human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) on electrospun rGO/PLCL membranes in order to construct a myocardial muscle patch. The conduction consistency of cardiomyocytes on the patches were carefully recorded. We found that cells cultivated on the electrospun rGO/PLCL fibers presented with an ordered and arranged structure, excellent mechanical properties, oxidation resistance and effective guidance. The addition of rGO was found to be beneficial for the maturation and synchronous electrical conductivity of hiPSC-CMs within the cardiac patch. This study verified the possibility of using conduction-consistent cardiac patches to enhance drug screening and disease modeling applications. Implementation of such a system could one day lead to in vivo cardiac repair applications.
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Affiliation(s)
- Yao Tan
- Institute of Pediatric Translational Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ying Chen
- Institute of Pediatric Translational Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Tingting Lu
- Institute of Pediatric Translational Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Nevin Witman
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - Bingqian Yan
- Institute of Pediatric Translational Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yiqi Gong
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xuefeng Ai
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Yang
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Minglu Liu
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Runjiao Luo
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Huijing Wang
- Institute of Pediatric Translational Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Stefano Ministrini
- Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland,Department of Medicine and Surgery, Internal Medicine, Angiology and Atherosclerosis, University of Perugia, Perugia, Italy
| | - Wei Dong
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China,*Correspondence: Wei Dong, ; Wei Wang, ; Wei Fu,
| | - Wei Wang
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China,*Correspondence: Wei Dong, ; Wei Wang, ; Wei Fu,
| | - Wei Fu
- Institute of Pediatric Translational Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China,Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China,*Correspondence: Wei Dong, ; Wei Wang, ; Wei Fu,
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8
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Luo C, Liu S, Luo W, Wang J, He H, Chen C, Xiao L, Liu C, Li Y. Fabrication of PLCL Block Polymer with Tunable Structure and Properties for Biomedical Application. Macromol Biosci 2023; 23:e2200507. [PMID: 36645702 DOI: 10.1002/mabi.202200507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/26/2022] [Indexed: 01/17/2023]
Abstract
Biodegradable materials are pivotal in the biomedical field, where how to precisely control their structure and performance is critical for their translational application. In this study, poly(L-lactide-b-ε-caprolactone) block copolymers (bPLCL) with well-defined segment structure are obtained by a first synthesis of poly(ε-caprolactone) soft block, followed by ring opening polymerization of lactide to form poly(L-lactide acid) hard block. The pre-polymerization allows for fabrication of bPLCL with the definite compositions of soft/hard segment while preserving the individual segment of their special soft or hard segment. These priorities make the bPLCL afford biodegradable polymer with better mechanical and biodegradable controllability than the random poly(L-lactide-co-ε-caprolactone) (rPLCL) synthesized via traditional one-pot polymerization. 10 mol% ε-caprolactone introduction can result in a formation of an elastic polymer with elongation at break of 286.15% ± 55.23%. Also, bPLCL preserves the unique crystalline structure of the soft and hard segments to present a more sustainable biodegradability than the rPLCL. The combinative merits make the pre-polymerization technique a promising strategy for a scalable production of PLCL materials for potential biomedical application.
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Affiliation(s)
- Chenmin Luo
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Shengyang Liu
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Wei Luo
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
| | - Jing Wang
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hongyan He
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Can Chen
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Lan Xiao
- School of Mechanical, Medical and Process Engineering, Centre for Biomedical Technologies, Queensland University of Technology (QUT), 60 Musk Avenue, Kelvin Grove, QLD 4059, Brisbane, Queensland, 4000, Australia.,The Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology (QUT), 60 Musk Avenue, Kelvin Grove, QLD 4059, Brisbane, Queensland, 4000, Australia
| | - Changsheng Liu
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China.,Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
| | - Yulin Li
- Engineering Research Center for Biomedical Materials of Ministry of Education, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Material Science & Engineering, East China University of Science and Technology, Shanghai, 200237, China.,Wenzhou Institute of Shanghai University, Wenzhou, 325000, China
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9
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Song ES, Park JH, Ha SS, Cha PH, Kang JT, Park CY, Park K. Novel Corneal Endothelial Cell Carrier Couples a Biodegradable Polymer and a Mesenchymal Stem Cell-Derived Extracellular Matrix. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12116-12129. [PMID: 35238557 DOI: 10.1021/acsami.2c01709] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Here, we report a transparent, biodegradable, and cell-adhesive carrier that is securely coupled with the extracellular matrix (ECM) for corneal endothelial cell (CEC) transplantation. To fabricate a CEC carrier, poly(lactide-co-caprolactone) (PLCL) solution was poured onto the decellularized ECM (UMDM) derived from in vitro cultured umbilical cord blood-MSCs. Once completely dried, ECM-PLCL was then peeled off from the substrate. It was 20 μm thick, transparent, rich in fibronectin and collagen type IV, and easy to handle. Surface characterizations exhibited that ECM-PLCL was very rough (54.0 ± 4.50 nm) and uniformly covered in high density by ECM and retained a positive surface charge (65.2 ± 57.8 mV), as assessed via atomic force microscopy. Human CECs (B4G12) on the ECM-PLCL showed good cell attachment, with a cell density similar to the normal cornea. They could also maintain a cell phenotype, with nicely formed cell-cell junctions as assessed via ZO-1 and N-cadherin at 14 days. This was in sharp contrast to the CEC behaviors on the FNC-coated PLCL (positive control). A function-related marker, Na+/K+-ATPase, was also identified via western blot and immunofluorescence. In addition, primary rabbit CECs showed a normal shape and they could express structural and functional proteins on the ECM-PLCL. A simulation test confirmed that CECs loaded on the ECM-PLCL were successfully engrafted into the decellularized porcine corneal tissue, with a high engraftment level and cell viability. Moreover, ECM-PLCL transplantation into the anterior chamber of the rabbit eye for 8 weeks proved the maintenance of normal cornea properties. Taken together, this study demonstrates that our ECM-PLCL can be a promising cornea endothelium graft with an excellent ECM microenvironment for CECs.
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Affiliation(s)
- Eui Sun Song
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Joo-Hee Park
- Department of Ophthalmology, Dongguk University Ilsan Hospital, Goyang 10326, Republic of Korea
| | - Sang Su Ha
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Pu-Hyeon Cha
- Biotechnology Research Institute, Mgenplus Co., Ltd., Seoul 06688, Republic of Korea
| | - Jung-Taek Kang
- Biotechnology Research Institute, Mgenplus Co., Ltd., Seoul 06688, Republic of Korea
| | - Choul Yong Park
- Department of Ophthalmology, Dongguk University Ilsan Hospital, Goyang 10326, Republic of Korea
| | - Kwideok Park
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
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Kim SH, Kim D, Cha M, Kim SH, Jung Y. The Regeneration of Large-Sized and Vascularized Adipose Tissue Using a Tailored Elastic Scaffold and dECM Hydrogels. Int J Mol Sci 2021; 22:ijms222212560. [PMID: 34830444 PMCID: PMC8624932 DOI: 10.3390/ijms222212560] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/12/2021] [Accepted: 11/17/2021] [Indexed: 12/03/2022] Open
Abstract
A dome-shaped elastic poly(l-lactide-co-caprolactone) (PLCL) scaffold with a channel and pore structure was fabricated by a combinative method of 3D printing technology and the gel pressing method (13 mm in diameter and 6.5 mm in thickness) for patient-specific regeneration. The PLCL scaffold was combined with adipose decellularized extracellular matrix (adECM) and heart decellularized extracellular matrix (hdECM) hydrogels and human adipose-derived stem cells (hADSCs) to promote adipogenesis and angiogenesis. These scaffolds had mechanical properties similar to those of native adipose tissue for improved tissue regeneration. The results of the in vitro real-time PCR showed that the dECM hydrogel mixture induces adipogenesis. In addition, the in vivo study at 12 weeks demonstrated that the tissue-engineered PLCL scaffolds containing the hydrogel mixture (hdECM/adECM (80:20)) and hADSCs promoted angiogenesis and adipose tissue formation, and suppressed apoptosis. Therefore, we expect that our constructs will be clinically applicable as material for the regeneration of patient-specific large-sized adipose tissue.
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Affiliation(s)
- Su Hee Kim
- Biomaterials Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Korea; (S.H.K.); (D.K.)
- R&D Center, Medifab Co., Ltd., 70 Dusan-ro, Geumcheon-gu, Seoul 08584, Korea;
| | - Donghak Kim
- Biomaterials Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Korea; (S.H.K.); (D.K.)
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea
| | - Misun Cha
- R&D Center, Medifab Co., Ltd., 70 Dusan-ro, Geumcheon-gu, Seoul 08584, Korea;
| | - Soo Hyun Kim
- Biomaterials Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Korea; (S.H.K.); (D.K.)
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea
- Korea Institute of Science and Technology (KIST) Europe, Campus E 7.1, 66123 Saarbrücken, Germany
- Correspondence: (S.H.K.); (Y.J.)
| | - Youngmee Jung
- Biomaterials Research Center, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Korea; (S.H.K.); (D.K.)
- School of Electrical and Electronic Engineering, YU-KIST Institute, Yonsei University, Seoul 03722, Korea
- Correspondence: (S.H.K.); (Y.J.)
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Dong Y, Li J, Yang F, Wang Y, Zhang Z, Wang J, Long Y, Wang X. Bioresorbable Primary Battery Anodes Built on Core-Double-Shell Zinc Microparticle Networks. ACS APPLIED MATERIALS & INTERFACES 2021; 13:14275-14282. [PMID: 33729760 DOI: 10.1021/acsami.1c00602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Bioresorbable implantable electronics require power sources that are also bioresorbable with controllable electrical output and lifetime. In this paper, we report a bioresorbable zinc primary battery anode filament based on a zinc microparticle (MP) network coated with chitosan and Al2O3 double shells. When discharged in 0.9% NaCl saline, a Zn MP filament with a 0.17 × 2 mm2 cross-sectional area exhibited a stable voltage output of 0.55 V at a current of 0.01 mA. Covered by chitosan and Al2O3 double shells, the zinc MP filament exhibited a directional dissolution behavior with a tunable lifetime approximately linear to its length. A stable 200 h discharging time was achieved with a 15 mm Zn MP filament. The maximum output power was found to be 12 μW at 0.03 mA for one filament. The linearity relationship between the current output and the filament cross-sectional area suggested a facile strategy to raise the power output at constant discharging voltage. The filaments could also be connected in series and in parallel to boost its overall voltage and current output, demonstrating their excellent integration capability. This work presents a promising pathway toward bioresorbable transient batteries with controllable lifetime and power output, demonstrating a great potential for powering transient implantable biomedical devices.
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Affiliation(s)
- Yutao Dong
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Jun Li
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Fan Yang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Yizhan Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Ziyi Zhang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Jingyu Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Yin Long
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Xudong Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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Viswanath A, Drew S. Subacromial balloon spacer - Where are we now? J Clin Orthop Trauma 2021; 17:223-232. [PMID: 33898241 PMCID: PMC8056261 DOI: 10.1016/j.jcot.2021.03.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Rotator cuff tears are a common cause of disability and pain. The ideal treatment for truly irreparable rotator cuffs is still debated, and one recent surgical advance is the development of the subacromial balloon spacer. This review aims to clarify the current evidence and indications for this device. METHODS A comprehensive literature search was undertaken using the MeSH search terms combining "balloon spacer" and "irreparable cuff tear". A total of 20 studies using the balloon spacer as a treatment modality in more than two patients, were analysed. RESULTS A total of 513 patients were analysed, representing 83% of those initially identified as meeting the inclusion criteria. The majority of studies recommended the device, with only four suggesting it was not recommended based on their results. Notable bias was present in the studies analysed, and there were no papers providing greater than level III evidence. CONCLUSION The subacromial balloon spacer is one possible treatment option for older, low-demand patients with a full thickness rotator cuff tear involving only the supraspinatus tendon, who also have no arthritis and have preserved active elevation beyond 90°. However, the results of two large randomised prospective trials are awaited to provide satisfactory evidence regarding the use of the balloon spacer.
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Affiliation(s)
- Aparna Viswanath
- Corresponding author. 29 Brook Road, Brentwood, CM14 4PT, United Kingdom.
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Grijalvo S, Díaz DD. Graphene-based hybrid materials as promising scaffolds for peripheral nerve regeneration. Neurochem Int 2021; 147:105005. [PMID: 33667593 DOI: 10.1016/j.neuint.2021.105005] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 11/30/2022]
Abstract
Peripheral nerve injury (PNI) is a serious clinical health problem caused by the damage of peripheral nerves which results in neurological deficits and permanent disability. There are several factors that may cause PNI such as localized damage (car accident, trauma, electrical injury) and outbreak of the systemic diseases (autoimmune or diabetes). While various diagnostic procedures including X-ray, magnetic resonance imaging (MRI), as well as other type of examinations such as electromyography or nerve conduction studies have been efficiently developed, a full recovery in patients with PNI is in many cases deficient or incomplete. This is the reason why additional therapeutic strategies should be explored to favor a complete rehabilitation in order to get appropriate nerve injury regeneration. The use of biomaterials acting as scaffolds opens an interesting approach in regenerative medicine and tissue engineering applications due to their ability to guide the growth of new tissues, adhesion and proliferation of cells including the expression of bioactive signals. This review discusses the preparation and therapeutic strategies describing in vitro and in vivo experiments using graphene-based materials in the context of PNI and their ability to promote nerve tissue regeneration.
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Affiliation(s)
- Santiago Grijalvo
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034, Barcelona, Catalonia, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain
| | - David Díaz Díaz
- Department of Organic Chemistry, University of La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206, La Laguna, Tenerife, Spain; Institute of Bio-Organic Antonio González, University of La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206, La Laguna, Tenerife, Spain; Institute of Organic Chemistry, University of Regensburg, Universitätstr. 31, Regensburg, 93053, Germany.
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Haim Zada M, Gallimidi Z, Schlesinger−Laufer M, Nyska A, Domb AJ. Biodegradable Breast Tissue Marker Clip. ACS APPLIED BIO MATERIALS 2020; 3:7439-7453. [DOI: 10.1021/acsabm.0c00655] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Moran Haim Zada
- Institute of Drug Research, School of Pharmacy-Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Zehava Gallimidi
- Department of Medical Imaging, Rambam Healthcare Campus, Haifa 3199, Israel
| | | | - Abraham Nyska
- Sackler School of Medicine, Tel Aviv University and Consultant in Toxicologic Pathology, Timrat 36576, Israel
| | - Abraham J. Domb
- Institute of Drug Research, School of Pharmacy-Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
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